When the stock price continues to run above the average price line, it shows that the market expectation is good, the buying enthusiasm is high, and most of the investors who participated in the day can make money, which is a strong feature of handicap; When the stock price continues to run below the average price line, it shows that the market expectation is poor and the selling enthusiasm is high. Most investors who participate in the day are losing money, which is a weak feature; When the average price line continues to rise from a low level, it shows that the market expectation is enhanced, investors enter the market to push up the stock price, and the comprehensive position cost is constantly increasing, which supports the stock price.